XML 74 R31.htm IDEA: XBRL DOCUMENT

Decommissioning Trust Funds (Tables)

3 Months Ended

Mar. 31, 2018

The available-for-sale securities held as of March 31, 2018 and December 31, 2017 are summarized as follows:



	Fair Value		Total Unrealized Gains		Total Unrealized Losses
	(In Millions)
2018
Debt Securities	2,619		23		48

2017
Equity Securities		$4,662		$2,131		$1
Debt Securities	2,550		44		16
Total		$7,212		$2,175		$17

Available For Sale Securities Continuous Unrealized Loss Position Fair Value

The fair value and gross unrealized losses of the available-for-sale debt securities, summarized by investment type and length of time that the securities have been in a continuous loss position, are as follows as of March 31, 2018:



	Debt Securities
	Fair Value		Gross Unrealized Losses
	(In Millions)
Less than 12 months		$1,667		$35
More than 12 months	241		13
Total		$1,908		$48

The fair value and gross unrealized losses of available-for-sale securities, summarized by investment type and length of time that the securities have been in a continuous loss position, are as follows as of December 31, 2017:



	Equity Securities				Debt Securities
	Fair Value		Gross Unrealized Losses		Fair Value		Gross Unrealized Losses
	(In Millions)
Less than 12 months		$8		$1		$1,099		$7
More than 12 months	—		—		265		9
Total		$8		$1		$1,364		$16

Fair Value Of Debt Securities By Contractual Maturities

The fair value of debt securities, summarized by contractual maturities, as of March 31, 2018 and December 31, 2017 are as follows:



	2018		2017
	(In Millions)
less than 1 year		$89		$74
1 year - 5 years	928		902
5 years - 10 years	784		812
10 years - 15 years	152		147
15 years - 20 years	101		100
20 years+	565		515
Total		$2,619		$2,550

Entergy Arkansas [Member]

Securities Held

Entergy Arkansas holds equity securities and available-for-sale debt securities in nuclear decommissioning trust accounts. The available-for-sale securities held as of March 31, 2018 and December 31, 2017 are summarized as follows:



	Fair Value		Total Unrealized Gains		Total Unrealized Losses
	(In Millions)
2018
Debt Securities	350.8		0.5		9.7

2017
Equity Securities		$596.7		$354.9		$—
Debt Securities	348.2		2.1		3.0
Total		$944.9		$357.0		$3.0

Available For Sale Securities Continuous Unrealized Loss Position Fair Value



	Debt Securities
	Fair Value		Gross Unrealized Losses
	(In Millions)
Less than 12 months		$277.8		$7.2
More than 12 months	42.5		2.5
Total		$320.3		$9.7

The fair value and gross unrealized losses of the available-for-sale securities, summarized by investment type and length of time that the securities have been in a continuous loss position, are as follows as of December 31, 2017:



	Equity Securities				Debt Securities
	Fair Value		Gross Unrealized Losses		Fair Value		Gross Unrealized Losses
	(In Millions)
Less than 12 months		$—		$—		$168.0		$1.2
More than 12 months	—		—		41.4		1.8
Total		$—		$—		$209.4		$3.0

Fair Value Of Debt Securities By Contractual Maturities

The fair value of debt securities, summarized by contractual maturities, as of March 31, 2018 and December 31, 2017 are as follows:



	2018		2017
	(In Millions)
less than 1 year		$14.1		$13.0
1 year - 5 years	130.6		123.4
5 years - 10 years	177.9		180.6
10 years - 15 years	3.4		4.8
15 years - 20 years	7.0		3.4
20 years+	17.8		23.0
Total		$350.8		$348.2

Entergy Louisiana [Member]

Securities Held

Entergy Louisiana holds equity securities and available-for-sale debt securities in nuclear decommissioning trust accounts. The available-for-sale securities held as of March 31, 2018 and December 31, 2017 are summarized as follows:



	Fair Value		Total Unrealized Gains		Total Unrealized Losses
	(In Millions)
2018
Debt Securities	516.3		5.7		8.4

2017
Equity Securities		$818.3		$461.2		$—
Debt Securities	493.8		10.9		3.6
Total		$1,312.1		$472.1		$3.6

Available For Sale Securities Continuous Unrealized Loss Position Fair Value



	Debt Securities
	Fair Value		Gross Unrealized Losses
	(In Millions)
Less than 12 months		$254.9		$4.6
More than 12 months	78.8		3.8
Total		$333.7		$8.4



	Equity Securities				Debt Securities
	Fair Value		Gross Unrealized Losses		Fair Value		Gross Unrealized Losses
	(In Millions)
Less than 12 months		$—		$—		$135.3		$1.1
More than 12 months	—		—		84.4		2.5
Total		$—		$—		$219.7		$3.6

Fair Value Of Debt Securities By Contractual Maturities

The fair value of debt securities, summarized by contractual maturities, as of March 31, 2018 and December 31, 2017 are as follows:



	2018		2017
	(In Millions)
less than 1 year		$28.1		$23.2
1 year - 5 years	136.7		122.8
5 years - 10 years	108.4		109.3
10 years - 15 years	52.9		52.7
15 years - 20 years	44.7		50.7
20 years+	145.5		135.1
Total		$516.3		$493.8

System Energy [Member]

Securities Held

System Energy holds equity securities and available-for-sale debt securities in nuclear decommissioning trust accounts. The available-for-sale securities held as of March 31, 2018 and December 31, 2017 are summarized as follows:



	Fair Value		Total Unrealized Gains		Total Unrealized Losses
	(In Millions)
2018
Debt Securities	325.6		1.4		5.8

2017
Equity Securities		$575.2		$308.6		$—
Debt Securities	330.5		4.2		1.2
Total		$905.7		$312.8		$1.2

Available For Sale Securities Continuous Unrealized Loss Position Fair Value



		Debt Securities
		Fair Value		Gross Unrealized Losses
	(In Millions)
Less than 12 months			$240.7		$5.5
More than 12 months		10.2		0.3
Total			$250.9		$5.8



	Equity Securities				Debt Securities
	Fair Value		Gross Unrealized Losses		Fair Value		Gross Unrealized Losses
	(In Millions)
Less than 12 months		$—		$—		$196.9		$1.0
More than 12 months	—		—		10.4		0.2
Total		$—		$—		$207.3		$1.2

Fair Value Of Debt Securities By Contractual Maturities

The fair value of debt securities, summarized by contractual maturities, as of March 31, 2018 and December 31, 2017 are as follows:



	2018		2017
	(In Millions)
less than 1 year		$5.5		$4.1
1 year - 5 years	164.5		173.0
5 years - 10 years	78.4		78.5
10 years - 15 years	3.8		1.0
15 years - 20 years	10.7		6.9
20 years+	62.7		67.0
Total		$325.6		$330.5